$\"\"$

The given evaluate $\"\"$ .

The sum of an arithmetic series $\"\"$ .

Where $\"\"$ is the first term and $\"\"$ is the nth term.

There are 300 terms, $\"\"$ and $\"\"$ . $\"\"$

The 150th term of the arithmetic sequence $\"\"$ .

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Add: 13 + 311 = 324)

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ (Divide: $\"\"$ ) $\"\"$

The sum of the arithmetic series is 24300.